189374528 has 28 divisors (see below), whose sum is σ = 429475392. Its totient is φ = 81160320.

The previous prime is 189374519. The next prime is 189374533. The reversal of 189374528 is 825473981.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (28).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 210908 + ... + 211803.

Almost surely, 2^189374528 is an apocalyptic number.

It is an amenable number.

189374528 is an abundant number, since it is smaller than the sum of its proper divisors (240100864).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

189374528 is an equidigital number, since it uses as much as digits as its factorization.

189374528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422730 (or 422720 counting only the distinct ones).

The product of its digits is 483840, while the sum is 47.

The square root of 189374528 is about 13761.3417950431. The cubic root of 189374528 is about 574.2581768246.

The spelling of 189374528 in words is "one hundred eighty-nine million, three hundred seventy-four thousand, five hundred twenty-eight".